Home / 459,362.30-689,043.46-143,843.82

Finding the Fourth Proportional to 459,362.30, 689,043.46 and 143,843.82

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Solution

The fourth proportional to 459,362.30, 689,043.46 and 143,843.82 is: 215,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,362.30 : 689,043.46 = 143,843.82 : x
  2. Step 2: Convert to fraction form
    459,362.30/689,043.46 = 143,843.82/x
  3. Step 3: Cross multiply
    459,362.30x = 689,043.46 × 143,843.82
  4. Step 4: Simplify right side
    459,362.30x = 99,114,643,432.42
  5. Step 5: Solve for x
    x = 99,114,643,432.42/459,362.30
  6. Step 6: Final answer
    x = 215,765.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.